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128084207 is a prime number
BaseRepresentation
bin1111010001001…
…10100011101111
322221000100111112
413220212203233
5230242143312
620413142235
73113461226
oct750464357
9287010445
10128084207
1166333619
1236a8a97b
13206c7794
1413021cbd
15b3a0d22
hex7a268ef

128084207 has 2 divisors, whose sum is σ = 128084208. Its totient is φ = 128084206.

The previous prime is 128084197. The next prime is 128084227. The reversal of 128084207 is 702480821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128084207 - 222 = 123889903 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128084227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64042103 + 64042104.

It is an arithmetic number, because the mean of its divisors is an integer number (64042104).

Almost surely, 2128084207 is an apocalyptic number.

128084207 is a deficient number, since it is larger than the sum of its proper divisors (1).

128084207 is an equidigital number, since it uses as much as digits as its factorization.

128084207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 128084207 is about 11317.4293459248. The cubic root of 128084207 is about 504.0789104945.

The spelling of 128084207 in words is "one hundred twenty-eight million, eighty-four thousand, two hundred seven".